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05-08-2026LAST POST
Hi everyone,

I have a e93 M3 and I would like to take the wire from the stock stereo and solder it to a jack for use with my android unit. Can anyone tell me what wire this is on the back of the stock stereo? Or where I can find the end of the mics wire?

Will what I'm doing even work? Has anyone done it?

TIA
Not sure if that will work. Not sure if there is a mic input jack for the android head unit. And if there is, why not just buy a cheap microphone rather than butchering the stock one?

I have an android unit in my car and I still take my calls thru original iDrive. My phone can pair to both devices at the same time - iDrive for calls, android head unit for media audio and Waze.
Redd wrote
Not sure if that will work. Not sure if there is a mic input jack for the android head unit. And if there is, why not just buy a cheap microphone rather than butchering the stock one?

I have an android unit in my car and I still take my calls thru original iDrive. My phone can pair to both devices at the same time - iDrive for calls, android head unit for media audio and Waze.
Redd wrote
Not sure if that will work. Not sure if there is a mic input jack for the android head unit. And if there is, why not just buy a cheap microphone rather than butchering the stock one?

I have an android unit in my car and I still take my calls thru original iDrive. My phone can pair to both devices at the same time - iDrive for calls, android head unit for media audio and Waze.
Ah so I just can't stand having extra microphones and stuff about the cabin I like to keep things looking oem. Mine does have a mic jack input
. And if yours doesn't you can buy a different harness or if your good with electronics you can pop the back open of the android unit and there's two contacts you can solder too for a mic.

The issue is I use my head unit with apple car play/android auto so it all gets overridden and sent there :(
Brad_e92 wrote
The issue is I use my head unit with apple car play/android auto so it all gets overridden and sent there :(
Ah OK. The easiest thing to do would be to just get an aftermarket mic. Keep the stock mic where it is in case someone else needs to use it.
I think what you are looking for a is a mic splitter cable. They come with some carplay/android auto kits, but can be tricky to locate separately. You can cut the 3.5mm connector off and solder it to whatever you want.

As far as I know the microphone doesn't directly connect to the CIC/CCC head unit, but connects to the combox in the back. The design was simplified in later bmws, and the microphone directly connects to NBT/NBT Evo head units.
I just got the xtrons 14.9" CIC , so your saying if u make calls on factory navigation it uses factory mic, but if i switch to android and use hands free, it uses the included mic?
I hear people mount the extra microphone in the steering column.